Periaementitis
牙周膜炎
🗣️ 情景例句
Fine, Mr. Wrigley.
好的，威格雷先生。
I got many channels on the TV set.
我的电视机有很多频道。
But, in contrast, it is only in modern times that Galileo has become a problem child for historians of science.
但是相比之下，只是在现代对于科学史家来说，伽利略才变成一个新的难题。